Sliding sash replacement windows.
A classic vertical opening style with two sashes moving past one another.

What are Sliding Sash windows?
Sliding sash windows are recognised by their vertically moving panels and balanced proportions. They are closely associated with period façades, but the right specification depends on the property and existing opening. Details such as rails, horns and glazing bars have a noticeable effect on the final look.
Worth thinking about.
Look at the original proportions and surrounding joinery. We can discuss which sash details are appropriate when we see the home.
Practical details.
Maintenance
Clean frames with mild soapy water and a soft cloth, and keep drainage openings clear. Sliding tracks and moving hardware should be kept free of dirt and cared for as directed by the system manufacturer; do not apply unapproved lubricant.
Finishes & colour
Sash-style windows are available in different frame materials and finishes, depending on the system. Compare rail widths, meeting rails, horns and glazing-bar details alongside colour samples and the existing façade.
Room & opening
The sashes move vertically rather than swinging into or out of the room, which can help where swing clearance is limited. Consider reachable controls, ventilation, cleaning access and the opening's condition when selecting a replacement.
Frequently asked questions.
How do sliding sash windows open?
The glazed sashes slide vertically past one another. The precise operation and balance mechanism depend on the selected window system.
Do sliding sash windows need room to swing open?
The sashes slide within the frame rather than swinging into the room. You should still consider access to the controls and safe cleaning of the glass.
Can replacement sash windows suit a period property?
Sash-style proportions and details can be selected with a property's character in mind, but the appropriate design depends on the building. Check any planning or listed-building requirements with the relevant authority.